Finding the Fourth Proportional to 197,489.09, 272,528.21 and 112,633.49
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Solution
The fourth proportional to 197,489.09, 272,528.21 and 112,633.49 is: 155,430.37
Step by Step Solution
- Step 1: Write the proportion equation
197,489.09 : 272,528.21 = 112,633.49 : x - Step 2: Convert to fraction form
197,489.09/272,528.21 = 112,633.49/x - Step 3: Cross multiply
197,489.09x = 272,528.21 × 112,633.49 - Step 4: Simplify right side
197,489.09x = 30,695,802,852.59 - Step 5: Solve for x
x = 30,695,802,852.59/197,489.09 - Step 6: Final answer
x = 155,430.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.